Spare parts/accessories
15.4 Electrical/electronic engineering
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01
337
15.4 Electrical/electronic engineering
The following electrical/electronic accessories are available for the SENTRON VL circuit breaker:
● Portable tester
Portable tester
The portable tester is used as a local test device for SENTRON VL circuit breakers with
electronic trip units. It can also be used as an external voltage supply for the electronic trip
unit (ETU and LCD-ETU). The portable tester is powered by three 9-volt batteries (included
with device). An optional external voltage supply can also be supplied.
Test functions:
● Current transfomer test, only for the LCD-ETU (ETU40M, ETU40 and ETU42)
● Test release
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Figure 15-7 Portable tester
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